diff options
| author | Li Zefan <lizf@cn.fujitsu.com> | 2009-08-19 15:54:51 +0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-08-19 15:02:24 +0200 |
| commit | 540b7b8d65575c80162f2a0f38e1d313c92a6042 (patch) | |
| tree | 664bdd01ce8fce990e634a304f9b3ab51e50970c /include/linux/syscalls.h | |
| parent | e647d6b314266adb904d4b84973eda0afa856946 (diff) | |
| download | linux-540b7b8d65575c80162f2a0f38e1d313c92a6042.tar.gz linux-540b7b8d65575c80162f2a0f38e1d313c92a6042.tar.bz2 linux-540b7b8d65575c80162f2a0f38e1d313c92a6042.zip | |
tracing/syscalls: Add filtering support
Add filtering support for syscall events:
# echo 'mode == 0666' > events/syscalls/sys_enter_open
# echo 'ret == 0' > events/syscalls/sys_exit_open
# echo 1 > events/syscalls/sys_enter_open
# echo 1 > events/syscalls/sys_exit_open
# cat trace
...
modprobe-3084 [001] 117.463140: sys_open(filename: 917d3e8, flags: 0, mode: 1b6)
modprobe-3084 [001] 117.463176: sys_open -> 0x0
less-3086 [001] 117.510455: sys_open(filename: 9c6bdb8, flags: 8000, mode: 1b6)
sendmail-2574 [001] 122.145840: sys_open(filename: b807a365, flags: 0, mode: 1b6)
...
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Jason Baron <jbaron@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <4A8BAFCB.1040006@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/syscalls.h')
| -rw-r--r-- | include/linux/syscalls.h | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 8d57f77794ee..f124c8995555 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -190,6 +190,7 @@ static void prof_sysexit_disable_##sname(struct ftrace_event_call *event_call) \ .event = &event_syscall_enter, \ .raw_init = init_enter_##sname, \ .show_format = syscall_enter_format, \ + .define_fields = syscall_enter_define_fields, \ .regfunc = reg_event_syscall_enter, \ .unregfunc = unreg_event_syscall_enter, \ .data = "sys"#sname, \ @@ -226,6 +227,7 @@ static void prof_sysexit_disable_##sname(struct ftrace_event_call *event_call) \ .event = &event_syscall_exit, \ .raw_init = init_exit_##sname, \ .show_format = syscall_exit_format, \ + .define_fields = syscall_exit_define_fields, \ .regfunc = reg_event_syscall_exit, \ .unregfunc = unreg_event_syscall_exit, \ .data = "sys"#sname, \ @@ -233,6 +235,8 @@ static void prof_sysexit_disable_##sname(struct ftrace_event_call *event_call) \ } #define SYSCALL_METADATA(sname, nb) \ + SYSCALL_TRACE_ENTER_EVENT(sname); \ + SYSCALL_TRACE_EXIT_EVENT(sname); \ static const struct syscall_metadata __used \ __attribute__((__aligned__(4))) \ __attribute__((section("__syscalls_metadata"))) \ @@ -241,20 +245,22 @@ static void prof_sysexit_disable_##sname(struct ftrace_event_call *event_call) \ .nb_args = nb, \ .types = types_##sname, \ .args = args_##sname, \ - }; \ - SYSCALL_TRACE_ENTER_EVENT(sname); \ - SYSCALL_TRACE_EXIT_EVENT(sname); + .enter_event = &event_enter_##sname, \ + .exit_event = &event_exit_##sname, \ + }; #define SYSCALL_DEFINE0(sname) \ + SYSCALL_TRACE_ENTER_EVENT(_##sname); \ + SYSCALL_TRACE_EXIT_EVENT(_##sname); \ static const struct syscall_metadata __used \ __attribute__((__aligned__(4))) \ __attribute__((section("__syscalls_metadata"))) \ __syscall_meta_##sname = { \ .name = "sys_"#sname, \ .nb_args = 0, \ + .enter_event = &event_enter__##sname, \ + .exit_event = &event_exit__##sname, \ }; \ - SYSCALL_TRACE_ENTER_EVENT(_##sname); \ - SYSCALL_TRACE_EXIT_EVENT(_##sname); \ asmlinkage long sys_##sname(void) #else #define SYSCALL_DEFINE0(name) asmlinkage long sys_##name(void) |